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Sedbober [7]
3 years ago
11

Help Me Please (30 Points) + Brainliset Answer

Mathematics
2 answers:
Pani-rosa [81]3 years ago
8 0
Each of 4 friends has 2 balloons
4 x 2 = 8

herself has one

so 8 + 1 = 9

answer: Total 9  balloons
Harlamova29_29 [7]3 years ago
6 0

I will be 9 balloons

I hope this help

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Determina la masa molar y el volumen que ocupa la siguiente sustancia CO2, si su masa es de 28 gr. *
balandron [24]

Answer:

Para el CO₂ sabemos que:

densidad = 0,001976 g/cm³

Sabemos que:

densidad = masa/volumen

Entonces, si tenemos una masa de 28 g, podemos escribir:

volumen = masa/densidad

volumen = (28g)/(0,001976 g/cm³) = 14,170 cm^3

Para obtener la masa molar (es decir, la masa de un mol de esta sustancia) simplemente sumamos la masa de un mol de cada componente.

Carbono: tiene una masa molar de 12 g/mol

Oxígeno: tiene una masa molar de 16 g/mol (y tenemos dos oxígenos)

entonces la masa molar va a ser:

masa molar = 12g/mol + 2*16g/mol = 44 g/mol

Es decir, un mol de CO₂, pesa 44 gramos.

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3 years ago
Tasha earns $400 per week plus a commission of 10% on her weekly sales. Each week she saves of her earnings. In the expression ,
madreJ [45]
Tasha weekly earnings.
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3 years ago
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Can you please help me out with a question
Finger [1]

The standard equation of a circle is expressed as

(x - h)^2 + (y - k)^2 = r^2

where

h is the x coordinate of the center of the circle

k is the y coordinate of the center of the circle

r is the radius of the circle(the distance from the center of the circle to the circumference

From the graph,

h = - 1

y = 4

r = 5

By substituting these values into the equation, we have

(x - - 1)^2 + (y - 4)^2 = 5^2

(x + 1)^2 + (y - 4)^2 = 25

Thus, the equation of the circle is

(x + 1)^2 + (y - 4)^2 = 25

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2 years ago
From the beginning of the day the temperature rose 15° so that by 4 pm it was 87°. What was the temperature at the start of the
zubka84 [21]
Your answer is A, 72°.
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Give the explicit and recursive formula for the sequence 0,6,12,18,24
Zigmanuir [339]
<span>Your input 6,12,18,24,30,36,42,48 appears to be an arithmetic sequence</span>
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3 years ago
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